The Quantum PR-4 Universal AC Module connects in place of PB1 or PB2 battery for the Quantum QPAC flash system. (PAC not needed.) Use it for uninterrupted, all-day operation of your:
Quantum Qflash X2D -- all modes of TTL supported
Quantum X and X2 - straight TTL.
- Slips onto the power pack in place of a PB1 or PB2 battery.